How to update my software in iPhone 6s Plus
How to update version in iPhone 6s Plus model
iPhone 6s Plus, iOS 13
How to update version in iPhone 6s Plus model
iPhone 6s Plus, iOS 13
An iPhone 6s, iPhone 7, or iPhone SE 1 isn't capable of 16 or above; they require an A11 or better CPU. To install 15.8, use a computer or the Software Update function in Settings.
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Make sure that you have a good Wi-Fi connection and that the battery is fully charged.
What happens when you tap Settings > General > Software Update?
If an error message appears, post back with the exact text of the message.
How to update my software in iPhone 6s Plus